Pure water short backfiring antenna with reconfigurable working mode

Abstract

The invention discloses a working mode reconfigurable pure water short backfiring antenna, comprising: a main reflector, a secondary reflector, a pure water inner ring, an outer ring, a coaxial probe, a metal cone for impedance matching, an axial Water column for matching and water column for normal matching; the main reflector, inner ring, and outer ring are transparent resin discs and rings with interlayers, and the overall shape is coaxially nested together, sharing two diameters of a bottom surface Different circular waveguides; the secondary reflector is a transparent resin disc with an interlayer, placed above the opening of the circular waveguide, and the center is directly opposite to the main reflector; the coaxial probe is set at the bottom of the transparent resin water storage container, and the main reflector The center is used for coaxial power feeding; the metal cone is set on the coaxial probe; the axial matching water column and the normal matching water column are transparent resin water pipes perpendicular to each other, which are set on the metal cone; the present invention has a working mode Reconfigurable, reconfigurable pattern, reconfigurable frequency, high transparent performance, and simple design, easy to process.

Description

technical field [0001] The invention belongs to the field of microwave antennas, in particular to a pure water short backfiring antenna with a reconfigurable working mode. Background technique [0002] In recent years, the idea of ​​using liquid materials to design antennas has attracted widespread attention because of its easy and reconfigurable properties. Pure water has been especially widely used because of its common and easy-to-obtain, colorless and transparent characteristics. The design and application of water antenna has become a hot spot in antenna engineering research. Water antennas often have the characteristics of cheapness, simple structure, easy processing, high transparency, and reconfigurability. [0003] Recently, many water antenna designs have emerged. Among them, the team of Professor Lu Guiwen of City University of Hong Kong proposed to use thin water layers to form antennas in papers such as "A waterdense dielectric patch antenna" and "A Wideband an...

AI Technical Summary

Problems solved by technology

Finally, a pure water patch antenna is formed, which achieves extremely high transparency and radiation efficiency, but its gain is low and it does not have reconfigurable characteristics

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